fix #2190, nutrition-data-per-serving-missing-serving-size
fix #2190, nutrition-data-per-serving-missing-serving-size

openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server